Insulator-supporting structure.



W. SCHAAKE.

TNSULATOR SUPPORTING STRUCTURE.

APPLICATION FILED JUNE 5,1913.

Patented July 25, 1916.

' 2 SHEETS-SHEET l 'ATTORNEY WISCHAAKE.

LNSULATOR SUPPORTING STRUCTURE.

APPLICATION FILED IuNE 5.1913.

1,1 92,690. Patented July 25, 1916.

2 SHEETS-SHEET 2.

WITNEssEs:

UNITED STATES PATENT OFFICE..

WILLIAM SCHAAKE, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO WESTINGI-IGUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

INSULATOR-UPPORTING STRUCTURE.

Application filed June 5, 1913.

T0 all whom t mag/ 0011061111:

Be it known that I, IVILLIAM SoHAAnr., a, citizen of the United States, and a resi dent` of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Insulator-Supporting Structures, of which the following is a specification.

My invention relates to supporting structures for insulators, and it has special reference to insulator pins that are employed for high-tension transmission lines.

One of the objects of my invention is to provide an insulator pin of the above-indicated class, comprising relatively few parts, which shall be simple and cheap to manufacture and assemble and be easily adapted for a variety of service conditions.

Another object of my invention is to provide an insulator pin of great strength which shall be free from complicated and expensive parts and be so arranged that perfect alinement with the conductor to be supported may be secured with facility dur ing the installation of the pin.

A still further object of my invention is to provide a supporting structure having a separable portion or thimble which is secured permanently in the bony of the insulator for mounting it in position, the parts of which shall be inexpensive and may, therefore, be thrown away when a broken insulator is replaced.

A still further object is to provide an insulator-supporting pin having a separable base whereby it may be readily adapted for use with any size of base and for a variety of different types of mounting. In the prior art, insulator pins having separable thimbles have been employed, but as previously used., the thimbles were costly to manufacture and, moreover, the body portions of the pins were made as single castings, so that various sizes were necessary for the different sizes and shapes of cross-arms and other types ofmounting.

.According to my invention, I propose to overcome the difliculties and objections encountered in the prior art and to produce an insulator pin of simple structure which may be economically manufactured and installed and, moreover, may be utilized extensively under diderent service conditions.

In the accompanying drawings, Figure 1 is a view, partially in section and partially Specification of Letters Patent.

Patented July 25, 1916.

Serial No. 771,869.

in side elevation, of a structure embodying my invention; Fig. 2 is a side elevation of a portion of the structure shown in Fig. l.; Fig. 3 is a side elevation of the separable thimble; F 4 is a view, partiallyrin section and partially in plan, of the device. the section being 'taken along the plane IV-I-IV of Fig. 2, and Fig. 5 is a view-'in side elevation of a portion of a supporting structure adapted for a different type of mounting. Referring to the drawings, the supporting structure comprises a plurality of insulator sections 1, which are united 'together to form a unit 2, and intermediate body member 3, a separable thiinble et, and a separable base 5. y i

yThe base- 5 is substantially rectangular in form and has its bottom surface 6 curved upwardly to conformv to the usual cur Yature of the upper portion of a cross-arm 7. The respective ends of the curved portion G of the base are provided with downwardly projecting flanges 8 for engagement with the side portion 7L of the supporting crossarm 7, whereby said base 5 is held in position. The base 5 is, moreover, provided with a raised seat 9 having its center portion 10 slightly depressed to receive a correspondingly curved portion 11 of the intermediate body member 3. Openings or channels 12 are provided on opposite sides of the base 5 which communicate with the central depression 10 thereof for the purpose of draining oft' any moisture that may collect therein.

The intermediate member 3 is substantially cylindrical in shape and is provided with a plurality of flanges or tapering webs 1-1 which are located substantially 90 degrees from each other and connect a disklilre lower portion 15 with the cylindrical body portion of the member 3 for reinforce ment and strength. The body portion 3 is, moreover,y provided with a center recess 18 which reduces the weight and cost. The upper and lower end portions 16 and 17 of the member 3 are provided with tapped holes 18 and 19, respectively, for the purpose of receiving bolts 20 and 21, as will be hereinafter set forth.

The bolt 2O just referred to, constitutes, together with a tubular member or shell 22, the separable thimble t. The shell 22 is cylindrical in form and is provided with a plurality of circumferential recesses or derectangular in shape to receiye the square head 2S of the bolt i0 which projects through the central evening Q6 ant is adapted to he secure into the opening 18 orc the internied. diate heey nieniber l lind it inost convenient and economical to einploy a standard carriage bolt for this purpose because or' its strength and cheap iess.

'lhe several insulator sections nia-.y be olz any well-known structure and, as iny inyention not in any way liniited to the specie torni thereolf, no detail description of' the sereral insulator parts will be giyen. lt will be understood that the insulator unit 2 nlay he composed el one or niore insulator sections l, as desired. rEhe extreine upper surface of the insulator unit 2 is proyided, in accordance with the usual custom, with a. recess JJ to receiye a conductor IBO which is to be sirijiorted. jrs shown the several insulator sections 2 are disposed one above another and secured together by layers ol ceinent 3l in the usual manner. rlhe inner surface of the lower insulator section l is proyided with a phirality of corrugations or threads to assist in securing the cement 3l in position.

ln ass inblingj the Various parts, the thirible l, including` the shell 22 and the bolt' 20, is preferably permanently attached to the insulator unit 2 in the factory by nieans o' ceinent 33 or other suitable material which is placed around the shell and lills the circunylerential recesses he transyerso opening 25, for the purptne of holding the thiinble lrigidly and permanently in position.

ln installing' the deyice upon a 7. a base chosen tl at is adaptei1 to the particular sir/1e and configurati cross-arm. filter plecin th a in Dosil tion, tine 1 i (l of the .in-einher 3. The insul: tor unit Q and its associated thinible l a 'e then secured tightly into place, and.y in order to aline the oye or rec C" 'l 30. it is only sulators l. it is only necessary to reinoi'e theni, with their associated thnnble 4?-, and

Copies of this patent may be obtained for 'ig now particularly to Fig. 5, the body ineinber 3 nray be secured to a supporting,` til-shaped strap by nieans of a suitable holt 3G, the strap 235 being secured to the upper end 3T of a pole or other supporting structure, in the usual nianner. lt will be noted that, in this so called pole type mounting, the ase 5 is not employed,

l the ineinher S rests directly upon the `lthougll have shown and described a upp .tru'eture haring specilie structl and arrangement and location ot sails, i desire 1t to be understood that all modifications thereof which do not dcpa rt freni the spirit and scope of iny invention are intended to be coyered in the appended clainis.

l claiin asiny inyention:

i. rlhe combination with an insulating' unit haring` a tnrnsfersely- Xtending `groove allai ted to rec-ei 'e a conductor, of a support therefor conrirfising` a bony nienil er, a separable base haying' a seat tor the body 1nenibei', a separable thiinble secured to the insulating unit, and separate and distinct bolts sei. i coi'peinting` with the upper and p xrtions ol.2 .aid body ineinber lor f said thinible upon the body and said boty ineniber upon said der to aline the groove and the inina' nieniber with the conductor to he il hercon. Y combination with an insulating er support therefor comprising' :t body nieinber and a separable thinible, said rin nbre coi s sting; oit a hollow shell. portion f rectangular opening and a transnine', a square-headed holt received angfjular opening' and having' its il; projeting downwardly to engage sa'd body ineinber, and a binding` ceinent flowed i'ito :nd around said hollow shell portion thiinble for securing` said insulating unit thereto.

n testimony whereof, have hereunto subscribed iny naine this 28th day of lllay, 1913.

lllllllilriltl SCHAKE.

.r itnesses:

Fits. l-.lhinnnnnm B. EINES.

ive cents each o adressne' the Commissioner of Patents Washington, D. C. 

